"""favorites_unique_constraint

Revision ID: 71477dadd6ef
Revises: 0f740a081d20
Create Date: 2018-07-11 12:49:52.792123

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = '71477dadd6ef'
down_revision = '0f740a081d20'
branch_labels = None
depends_on = None


def upgrade():
    op.create_unique_constraint('unique_favorite', 'favorites', ['object_type', 'object_id', 'user_id'])


def downgrade():
    op.drop_constraint('unique_favorite', 'favorites', type_='unique')
